Considering the structural organization of the human body, which is the correct sequence from the most complex level to the simplest level of organization?

Which statement best describes the relationship between observations and conclusions? a) observations are based on conclusions b) conclusions are based on observations c) observations and conclusions both depend on research d) neither conclusions nor observations depend on research.

Which of the following would most likely be key to gathering evidence that the rna world hypothesis is valid? creation of suitable environments for long-term study of single-celled organisms simulation of early earth conditions and long-term study of the resulting molecules development of a system for studying the microsphere's ability to absorb additional molecules categorization of the different specific conditions that result in the development of microspheres

What is the phylum of soft bodied animals with a true bosy cavity and a three part body consisting of a foot visceral mass and a mantle